High severity8.8NVD Advisory· Published Jun 30, 2026· Updated Jul 2, 2026
CVE-2026-41053
CVE-2026-41053
Description
Incorrect authentication caching in the team member ship expansion of the Rancher Github authentication provider caused it granting principal access to any logged in user, in 2.13 before 2.13.6 and 2.14 before 2.14.2.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/rancher/rancherGo | >= 2.14.0, < 2.14.2 | 2.14.2 |
github.com/rancher/rancherGo | >= 2.13.0, < 2.13.6 | 2.13.6 |
github.com/rancher/rancherGo | < 0.0.0-20260519172014-d0c047bbc6d2 | 0.0.0-20260519172014-d0c047bbc6d2 |
Affected products
5- osv-coords3 versionspkg:apk/chainguard/harvesterpkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2016.0pkg:apk/chainguard/harvester-fips-webhook
< 1.8.1-r32+ 2 more
- (no CPE)range: < 1.8.1-r32
- (no CPE)range: < 0.0.20260723T184607-160000.1.1
- (no CPE)range: < 1.8.1-r28
Patches
Vulnerability mechanics
References
7- github.com/rancher/rancher/security/advisories/GHSA-4j6x-2764-m8ghnvdPatchVendor AdvisoryMitigationWEB
- github.com/advisories/GHSA-4j6x-2764-m8ghghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-41053ghsaADVISORY
- github.com/rancher/rancher/commit/361d4d57cd09b87f3c53f88af42046ffaa7b57e4ghsaWEB
- github.com/rancher/rancher/commit/d0c047bbc6d202e953d7557b82cbb354367db6aeghsaWEB
- github.com/rancher/rancher/pull/55093ghsaWEB
- github.com/rancher/rancher/pull/55147ghsaWEB
News mentions
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